Hi I followed instructions from a book bySharon Pederson called Reversible quilts.
You basic cut a square of wadding/batting then cut your strips at different widths and a triangle,then it's really just flip and stich

Hi yours is lovely and looks similar to a reversible blocks I have made--see photo

Back and front

Looks fascinating. How do you make them?

I posted a tute in the tutorial section.

I will put all four blocks together to cover the top of a double bed and then a center strip border to frame and then not sure on the other borders yet. Maybe a piano key border to tie in some more scraps.

I have never done paper piecing so maybe I dont get the whole concept of this but why didnt you just sew you strips together and cut the square without the paper?

Don't know if you ever got an answer to your question ... You can sew the strips together and cut the square, but then you have a lot of bias edges and you have possible stretching to contend with. Using a foundation, whether paper or cloth, provides stability. You can also use short lengths of strips.